<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>OA系统</title>
    <link rel="stylesheet" href="assets/main.css">
    <link rel="stylesheet" href="assets/oa.css">    
</head>
<body>
   <div class="container">
        <div class="system"></div>
        <div class="chat">
            <div class="chat__message"></div>
            <div class="chat__usertext">
                <textarea name="chat-user-text"></textarea>
                <a href="#">发送</a>
            </div>
        </div>
    </div>
</body>
</html>